Stamp pad



J. G. KIRCHER STAMP PAD Filed Nov. 13, 1956 INVENTOR JOHN G KIRCHER Atfys United States Patent STAMP PAD John G. Kircher, Cincinnati, Ohio Application November 13, 1956, Serial No. 621,752

3 Claims. (Cl. 118-264) This invention relates to a stamp pad device for inking rubber stamps and the like.

An object of this invention is to provide a simple, inexpensive stamp pad device in which two inked pads are provided which engage fiatwise against each other when not in use to prevent evaporation from the inked faces thereof.

A further object of this invention is to provide a stamp pad device of this type in which the pads are mounted on backing boards which overlie the inked pads when the pads are not in use.

A further object of this invention is to provide a device of this type in which the backing boards are connected by a flexible type hinge so that the boards may be opened and lie flatwise on a supporting surface and can be closed with the ink pads therebetween.

A further object of this invention is to provide a device of this type in which the flexible type hinge is formed from a portion of the material of which the backing boards are formed.

A further object of this invention is to provide a device of this type in which edges of the inking pads are unobstructed when the device is open.

The above and other objects and features of this invention will be apparent to those skilled in the art to which this invention pertains from the following detailed description, and the drawing, in which:

Figure 1 is a plan view of a stamp pad device con structed in accordance with an embodiment of this invention, the device being shown open;

Fig. 2 is a view in end elevation of the device;

Fig. 3 is a perspective view showing the device closed;

Fig. 4 is a perspective view showing the device in shipping condition;

Fig. 5 is a perspective view showing a stamp pad device constructed in accordance with another embodiment of this invention, the device being shown open; and

Fig. 6 is a view in end elevation of the device illustrated in Fig. 5, the device being shown closed.

In the following detailed description, and the drawing, like reference characters indicate like parts.

In Figs. 1-4 is illustrated a stamp pad device constructed in accordance with an embodiment of this invention. As shown in Figs. l-3 inclusive, the device includes backing boards 10 and 12 which may be formed of corrugated paper board or the like. Felt inking pads 13 and 14 are adhesively attached to upper faces 16 and 17 of the boards 10 and 12, respectively. The upper faces 16 and 17 of the backing boards may be coated or covered with an appropriate coating or film of an inkimpervious material, such as a varnish, a plastic coating, or the like, to prevent penetration of ink from the pads into the boards. The felt pads may be attached to the backing boards by means of an appropriate adhesive such as that commonly known as rubber cement. The felt pads may be impregnated with appropriate ink.

The backing boards are linked by a hinge strip 18 2,857,877 Patented Oct. 28, 1958 which may be formed from a strip of pressure sensitive tape having an ink-impervious back. The hinge 18 is flexible, so that, when the backing boards are in the open position shown in Fig. 2, the backing boards rest flatwise upon a supporting surface 19. The felt pads are similar in shape to each other and preferably are rectangular, as shown, so that, when the device is closed, the faces of the felt pads engage and are coextensive with each other to prevent evaporation therefrom. The exposed edges 21 of the felt pads may be coated with an ink resistant material, such as rubber cement, to prevent evaporation of the ink at the exposed edges. When the pad is closed, it may ordinarily be held in the closed position by means of a rubber band 22, or the like.

When the pad is to be shipped or not to be used for an extended period, it may be closed by means of an elongated strip of pressure sensitive tape 24, as shown in Fig. 4. The strip of tape 24 encloses the edges of the boards. At the ends of the strip of tape 24 may be provided tabs 26 by which an end of the strip of tape may be grasped.

In Figs. 5 and 6 is illustrated a stamp pad device constructed in accordance with another embodiment of this invention. As illustrated in Fig. 5, the device includes backing board portions 28 and 29 which are formed from a single piece of corrugated board. The corrugated board has an upper sheet 31, which forms the upper faces of both boards and also includes a central portion 32 which forms a hinge therebetween. Immediately below the central hinge portion 32, the lower sheet of the corrugated board and the corrugated filler thereof are cut away, as indicated at 33, to form a slot between the backing board portions. Parallel score lines or lines of weakening 34 and 35 are formed in the material of the upper sheet 31 along opposite sides of the slot. The upper surface of the upper sheet 31 may be coated with an appropriate substantially ink-impervious material. Inked pads 36 and 37 of felted paper or the like, may be adhesively attached to the upper face at the upper sheet 31. The device can be closed, as shown in Fig. 6, and, when closed, the faces of the inked pads engage fiatwise. The edges of the inked pads may be coated with an appropriate ink-impervious material, such as rubber cement, to prevent evaporation of ink at: the exposed edges.

The stamp pads illustrated in the drawing and described above are subject to structural modification without departing from the spirit and scope of the appended claims.

Having described my invention, what I claim as new and wish to secure by Letters Patent is:

l. A stamp pad which comprises a pair of paper board backing boards having adjacent edges, a flexible hinge connecting said edges, an ink-impervious coating on said backing boards, felt pads mounted on said backing boards, said felt pads being adapted to engage flatwise against each other when the boards are closed with the engaging faces being coextensive and an ink-impervious coating on the edges of the felt pads.

2. A stamp pad which comprises a pair of backing boards having spaced adjacent edges, each of said backing boards being formed of corrugated paperboard having an upper face, a filler and a lower face, a hinge strip integral with the upper faces of the backing boards linking the backing boards, lines of weakening in said linking strip at the adjacent edges of the backing boards, and inked pads mounted on the backing boards, the inked pads being adapted to engage fiatwise against each other when the boards are closed.

3. A stamp pad which comprises a pair of backing boards having spaced adjacent edges, each of said backing boards being formed of corrugated paperboard having an upper face, a filler, and a lower face, a hinge strip inbeing coextensive, and an ink-impervious rubber coating tegral with the, upper faces of the backing boards linkontheedges of the feltpads.

ing the backin boards, lines of weakenin in said hin e strip at the a jacent edges of the backiig boards, a n References Clted m the file of thls patent ink-impervious; coating; on the upper faces of thezbacking 5 UNITED STATES PATENTS boards, felt pads mounted on said; backingboards, said 551,902 Laughton Dec. 24, 1895 felt pads being adapted to engage flatwiseagainst each 1,232,158 Youngs July 3, 1917 othen when the boards areclosed with theengaging faces 1,381,156 Woodruif June 14, 1921 

